Our specific methodology for deduplication is as follows:
we first extract the center frame \(c^m_i\)  for each shot \(s^m_i\)  defined as \(c^m_i = f_{(i, \lfloor l^m_i / 2 \rfloor )}^m\) . For each center frame, we extract the penultimate embeddings out of MobileNet [1]} pretrained on ImageNet [2]}. Let \(e^m_i = \text{enc}(c^m_i) \in \mathbb {R}^{1024}\)  be the embedding for frame \(c^m_i\)  where \(\text{enc}\)  takes an image and outputs a 1024-dimensional vector.
